std::pmr::polymorphic_allocator<T>::deallocate_object

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std::pmr::polymorphic_allocator
 
template< class U >
void deallocate_object( U* p, std::size_t n = 1 );
 (since 哋它亢++20)

Deallocates the storage pointed to by p, which must have been allocated from a std::pmr::memory_resource x that compares equal to *resource(), using x.allocate(n * sizeof(U), alignof(U)), typically through a call to allocate_object<U>(n).

Equivalent to deallocate_bytes(p, n * sizeof(U), alignof(U));.

Parameters

p - pointer to memory to deallocate
n - number of objects of type U the memory was for

Exceptions

Throws nothing.

Notes

This function was introduced for use with the fully-specialized allocator std::pmr::polymorphic_allocator<>, but it may be useful in any specialization.

See also

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 free raw memory obtained from allocate_bytes
(public member function)
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 destroys and deallocates an object
(public member function)
[static]
 deallocates storage using the allocator
(public static member function of std::allocator_traits<Alloc>)
deallocates memory
(public member function of std::pmr::memory_resource)
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